Home / 879,257.60-1,318,861.68-280,254.66

Finding the Fourth Proportional to 879,257.60, 1,318,861.68 and 280,254.66

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Solution

The fourth proportional to 879,257.60, 1,318,861.68 and 280,254.66 is: 420,374.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,257.60 : 1,318,861.68 = 280,254.66 : x
  2. Step 2: Convert to fraction form
    879,257.60/1,318,861.68 = 280,254.66/x
  3. Step 3: Cross multiply
    879,257.60x = 1,318,861.68 × 280,254.66
  4. Step 4: Simplify right side
    879,257.60x = 369,617,131,715.43
  5. Step 5: Solve for x
    x = 369,617,131,715.43/879,257.60
  6. Step 6: Final answer
    x = 420,374.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.